Valve



, INVENTOR: Jamea 1 Lawn J. D. LALOR VALVE Filed Dec. 15. 1924 Jan. 17, 1928.

TTORNEYS.

Patented Jan. 17,

iuu ren STATES; PATENT or FICE.

JAMES n. nALon, or B LTIMORE, MARYLAND, ASSIGNOR TO THE LAWLQR FUEL 01 sYsrnrr COMPANY, me, or BALTIMORE, MARYLAN A CORPORATION or MARY- LAND. j

VALVE.

Application filed December 15, 1924. Serial navsaooi.

. This invention relates to valves, more es pecially to atype wherein the flow therethrough is controlled by a shutter movable transversely across the flow passage, such valves being particularly useful, for example, in connection with liquid fuel burning= installations to control supplyof com pressed air to nozzle. burners whereby the oil is vaporized and commingled for accel eration and intensification of combustion.

Myinvent-ion is directed toward securing inconnection with valves ofthe sort specifically mentioned, morecilicient fluid. tightness against leakage without impalring facility of their operation; greater reliability against disturbance in adjusted positions, through jarring and vibration; as well as toward obtaining the advantages of structural slmplicity more especially with regard to ease .of assembling and freedom from derangement in long continued usage.

The description that follows sets forth. a valve structure in whichthe.desiderata above outlined is fully attained, the claims appended thereto defining those features which I believe to be novel and wholly within the scope of the present. invention.

lVith referencetothe drawings, Fig. I is an illustration of a valve organization con- 'veniently embodying my invention; and,

Fig. II isa sectional view of the same taken as indicated by the arrows IIII in Fig.1, i I r The casing'of the valve generally indicated by the numeral 1, may be conveniently made elliptic in configuration and consists of two component halves or sections 2, 3 that are assembled in opposed relation as shown in Fig. II and clamped together by a series ofscrew bolts i. The casing sections 2, 3.

have eccentricallyfdisposed integral outstanding bosses 5, 6 respectively, that arein minor axis of the ellipse, see. Fig. I,;sa-il;

pocket having itscounterpart in a registering circular pocket 15 of smaller diameterin an offset 1.6 of the casing section 2. The pur pose of these pockets will presently be explained. a V

The movable member of the valve 1 is in. the form of a shutter plate 18 in this instance of circular outline, and of a diameter corm sponding substantially to the outside dimensions of the; face 11 so as to completely overlap the latter when in the closed position shown, thus to prevent flow through the valve. The discous plate 18 I is machine finished'on opposite sides for accurate frictional fit between the opposed faces 11,13 so asto make a fluid-tight juncture with them, and to be held by them against displacement in adjusted positions. This plate 18 has a radially projecting car 19,, Fig. I, whereon is formed a boss 20 that is accom- Juodated in the cavity jointly formed by the registering pockets 14, 15 of the casing sections 2, 3, said car being provided with a polygonal opening adapted to be engaged by a correspondingly configured portion 21 of an actuating shaft22 that extends outwardly through a stufling box 23 in a boss 24 on the casing section 3. The inner extremity of the shaft 22 beyond the polygonal portion 21, is reduced to cylindric formation and screw threaded for engagement by a clamp nut 25 whereby the shaft 22 and the plate 18 are fixed in rigid relation. One end of the boss 20 of the plate 18 fits the circular pocket 15 thereby assisting journal support of the shaft 22; and it is to be particularly noted that the depth of this pocket is such as to define a substantial clearance beyondthe clamp nut 25, and that the oppositeend of the boss projecting into the pocket 14 has clearance all around. By virtue of these clearances, it will be seen that the shaft 22 may float in the direction of its axis without inducing any binding such as would be likely to interfere with ready shifting of the shutter plate 18. As a means to enable such shifting, a hand lever is secured to the protruding end of the shaft 22, said end being squared as at 27 to fit a similarly shaped aperture in the hub end of said hand lever. A clamp nut 28 engaging a short threaded prolongation 29 of the shaft 22 functions as a means to retain the hand lever 26 in place. The full open and closed positions of the discous plate 18 (the first being indicated in dot and dash lines in Fig. I) are determined by spaced limiting stop pins or lugs 30 projecting inwardly from one of the casing members and adapted to engage opposite side edges of the ear 15 of said plate.

Attention is directed to the fact that regardless of the position of the plate 18, it is always ati'erc'ied support by reason of full contact with the continuous face 13 of the casing section 3; and also that said plate is effectively held against vibrating even when in full. open position as a result of be ing still engaged between said face 13 and the opposing marginal facing 11 about the opening 7 in casing section 2, and yet quite capable of being shifted without undue restraint.

From the foregoing it will be apparent that I have provided a flow control valve that may be quickly shifted to any desired position of adjustment, and which will re main set in adjusted positions by reason of being at all times held against jarring and vibration.

Having thus described my invention, I claim:

1. A valve for liquid fuel installations comprising component abutting sections witlran eccent-rically-disposed transverse flow passage, a shutter plate journaled by concentric bosses in registering pockets in the component sections and capable of being swung crosswise of thepassage in controlling flow therethrou'gh, one of said bosses affording journal support for the shutter plate and the other having a surroundin clearance so that said bafile plate may aXia y float without inducing binding, said plate being in full .contact with a continuous facing of the one section, and frictionally engaged between' said facing and an opposed marginal facing on the other side of the casing extending locally about the flow passage aforesaid so as to remain unaided in shifted positions and yet be movable without undue'restraint.

2. A valve for liquid fuel installations including a casing comprising two component abutting sections with eccentrically-disposed aligned openings constituting jointly a transverse flow passage, one of said casing sections being recessed on the abutting side to provide a-periinetrical facing and having a circular pocket, and a marginal facing slightly inward-rel.ative to the first-locally about the inflow opening, and the otherof said casing members having a continuous facing in abutting relation with the peri metrical facing of the first casing member to effect closure of the recess in the latter remain unaided in shifted positions andyet be movable without undue restraint.

In testimony whereof, I have hereunto signed my name at Baltimore, Maryland, this 12th day of November 1924:.

JAMES l). LABOR.

ECTWN,

JAMES Du LAEJG asssmee mm have CEQTEFHCATE w QGRR said G e; and that the said Lea l 2 0O 21 Vnn mu. 1a, mu 1 5 1 a 6 S n mm mm "H. S 

